Mini-open excision of osteoid osteoma using burrs with the guidance of O-arm navigation / 中华骨科杂志

Objective:To investigate the surgical method and clinical effect of O-arm navigation mini-open burring for osteoid osteoma.Methods:Eighteen patients with osteoid osteoma were treated with O-arm guided grinding drill from June 2021 to May 2022, including 15 males and 3 females, the age was (18.4 ±10.9) years (range 2 to 44 years), and the course of disease ranged from 1 week to 3 years (mean 14.2 months). The lesions sites included 6 cases of proximal femur, 3 cases of distal femur, 4 cases of proximal tibia, 1 case of distal tibia, 2 cases of proximal fibula and 1 case of distal and proximal humerus. During the operation, the O-arm navigation was used to determine the location of the focus, the muscle and soft tissue was peeled off to the bone surface through a 1-4 cm small incision, the channel retractor was placed, and the burr was registered as a navigation recognition device to gradually remove the bone on the surface of the tumor nest, and the tumor nest was scraped with a curette for pathological examination; according to the navigation image, the focus was enlarged removed with burr and the grinding range was confirmed by the O-arm X-ray machine before the end of the operation. The patients were followed up for 6 to 15 months (mean 9.5 months). CT scans were performed before and after surgery for imaging comparison in order to figure out whether it had residual lesions or recurrence. The visual analogue score (VAS) of pain was used as a parameter for evaluating the clinical efficacy.Results:The operation time of 18 cases was 40-175 min, with an average of 89.3 min. The time required to establish navigation image was 18.0 ±4.1 min (range 13 ~ 22 min). The length of the incision was 2.7±1.1 cm (range 1-4 cm). All patients achieved complete curettage of the lesions, and osteoid osteoma was confirmed by pathology after operation. All the patients could move to the ground 24 hours after operation, and the pain was significantly relieved from 3 to 7 d after operation, and the pain almost disappeared 3 months after operation. The VAS score of 18 cases was 5.33±1.24 before surgery, 2.79±1.32 on the 3rd day, 1.86±1.21 on the 7th day, 0.86±0.93 on the 1st month, 0.33±0.48 on the 3rd month, and 0.09±0.29 on the 6th month after operation, and the difference was statistically significant ( F=58.50, P<0.001). There were no serious complications during and after operation, and the success rate of treatment (no recurrence of symptoms, no residual recurrence of imaging lesions, no serious complications after operation) was 100%. Conclusion:Treatment of osteoid osteoma with mini-open excision using burrs under the navigation of O-arm is a simple, safe, minimally invasive and efficient technique. Intraoperative precise positioning and the use of burr with navigation to remove a larger area than the tumor nest are the keys to successful treatment.

Osteolipoma of leg masquerading as osteoid osteoma: A case report

Lipomas are the most common, subcutaneous, and slow-growing tumors composed of fat (adipose tissue). Out of many types of these benign tumors, ossifying lipoma (osteolipoma) is the rarest subtype. Here, randomly distributed trabeculae of lamellar bone are seen within mature adipose tissue. They are featured only as isolated case reports and small case series, thus the true incidence is not known. The most common site for osteolipoma is the head and neck region and they are rarely reported in the lower extremities. Herein, we discuss the case of a 19-year-old man who presented with a progressively enlarging painful mass in the left leg. Radiology was typical of osteoid osteoma. Excision was performed and histopathological examination confirmed the lesion as osteolipoma with no evidence of malignancy. No recurrence of the tumor was observed after 2 years of follow-up. Although osteolipoma is a rare entity, the differential diagnosis of the lesion can be kept in mind whenever we encounter ossification within the adipose tissue.

An Overlooked Entity in Diagnosing Hip Pain with Neuropathy in an Athletic Young Adult: A Case Report

@#Hip pain is frequently encountered in the athletic community. Femoro-acetabular impingement (FAI) is a common cause of hip pain in young adults. However, it is important to appreciate the uncommon diagnosis and the role of imaging for unexplained hip pain. The pathology behind a posterior hip pain is often misdiagnosed as the cause of hip pain is non-specific, extensive and elusive. We managed to detect the pathology through magnetic resonance arthrography (MRA) of hip with gadolinium enhancement after a series of inconclusive history, physical examination and imaging findings were completed. This particular case vignettes an overlooked osteoid osteoma that leads to the delay in diagnosis and increase morbidity.

Tratamiento integral de la osificación heterotópica en politraumatismo con traumatismo encéfalo craneano reporte de un caso / Comprehensive treatment of heterotopic ossification in polytraumatism with traumatic brain injury case report

RESUMEN Introducción: La osificación heterotópica (OH) es una complicación descrita en los pacientes con daño neurológico. Reporte de caso: Paciente que sufrió un politraumatismo y traumatismo encéfalo craneano (TEC), con fracturas y déficit neurológico secundario al TEC, quien presentó varias osificaciones heterotópicas durante su evolución, que comprometieron el logro de los objetivos funcionales. Presentó como principal manifestación tumefacción y limitación del rango articular (RA) para la extensión de cadera y rodilla izquierda, lo que mantenía el miembro inferior izquierdo (MI) flexionado, impidiendo la bipedestación y marcha. Fue diagnosticado como osteoma secundario a trauma neurológico y recibió un manejo médico estructurado, que incluyó la intervención quirúrgica: "resección del osteoma y tenotomía en isquiotiobiales", obteniendo mejora del rango articular, logrando la bipedestación y marcha con apoyo biomecánico. Discusión: La fisiopatología se cree que está relacionada a la liberación sistémica de sustancias estimulantes de células madre pluripotenciales, que se diferencian como osteoblastos. Conclusión: Un manejo integral multidisciplinario provee mejores resultados funcionales, lo que contribuye a la meta de la independencia.

ABSTRACT Introduction: Heterotopic ossification (OH) is a complication described in patients with neurological damage. Case report: Patient who suffered a multiple trauma and traumatic brain injury (TBI), with fractures and neurological deficit secondary to TBI, who presented several heterotopic ossifications (OH) during his evolution that compromised the achievement of functional objectives. The main manifestation was swelling and limitation of the articular range (RA) for the extension of the left hip and knee, which kept the lower left limb (MI) flexed, preventing standing and walking. He was diagnosed as osteoma secondary to neurological trauma and received structured medical management, which included surgical intervention: "resection of the osteoma and tenotomy in hamstrings", obtaining improvement of the joint range, chieving standing and walking with biomechanical support. Discussion: The pathophysiology is believed to be related to the systemic release of stimulating substances from pluripotent stem cells, which differentiate as osteoblasts. Conclusion: A multidisciplinary comprehensive management provides better functional results, which contributes to the goal of the independence.

Repercusión biomecánica derivada de un osteoma en el tercio proximal del fémur: a propósito de un caso / Biomechanical Impact Derived From an Osteoma in the Proximal Third of the Femur: Report of a Case

Introducción: El osteoma osteoide es un tumor óseo benigno, que no tiene potencial de crecimiento por lo que su tamaño no supera 1,5 cm pese a que la esclerosis que lo rodea le da un aspecto mayor. Afecta con mayor frecuencia a los varones jóvenes, y la mayoría de las veces aparece en las tres primeras décadas de la vida. Objetivos: Mostrar las repercusiones biomecánicas derivadas de un osteoma osteoide en el trayecto de la cintilla iliotibial y sus influencias por cadenas musculares descendentes sobre el miembro inferior. Presentación del caso: Se presenta una paciente de 24 años que acude a la consulta por presentar dolor a nivel de la cara externa del fémur derecho desde hace dos años; que se agudiza fundamentalmente con la marcha. Tras realizar las pertinentes exploraciones y pruebas diagnósticas por imagen, no se observan hallazgos clínicos significativos, por tanto se pauta tratamiento antiinflamatorio por vía oral y se efectúa estudio biomecánico y postural en el cual se detecta pie valgos bilaterales, inestables, con mayor relevancia en el pie derecho. La paciente acude nuevamente al no encontrar mejoría, se realiza telemetría del miembro inferior y resonancia magnética del fémur derecho. La imagen para diagnóstico da como resultado la presencia de una masa compatible con un osteoma osteoide de 11 x 4 mm en el tercio proximal lateral del fémur derecho. Conclusiones: Una lesión neoplásica que afecte al trayecto de un grupo muscular con repercusión biomecánica puede realizar compensaciones a diferentes niveles, por tanto, es necesaria la actuación de un equipo multidisciplinario para restablecer la marcha. Las sinergias entre el tratamiento conservador y quirúrgico provocan un mayor porcentaje de éxito(AU)

Introduction: Osteoid osteoma is a benign bone tumor, which has no growth potential, consequently its size does not exceed 1.5 cm despite the fact that the surrounding sclerosis gives it a larger appearance. It most often affects young men, most often appearing in the first three decades of life. Objectives: To show the biomechanical repercussions derived from an osteoid osteoma in the trajectory of the iliotibial band and its influences by descending muscle chains on the lower limb. Case report: We report a 24-year-old female patient who came to the consultation due to pain on the external face of her right femur for two years. This pain worsened mainly by walking. After carrying out the pertinent explorations and diagnostic imaging tests, no significant clinical findings were observed, therefore, oral anti-inflammatory treatment was prescribed and biomechanical and postural study was carried out, which showed bilateral, unstable valgus foot, with higher relevance on the right foot. The patient came again when she had no improvement, telemetry of her lower limb and magnetic resonance imaging of her right femur were performed. The diagnostic image revealed the presence of a mass compatible with an 11 x 4 mm osteoid osteoma in the proximal lateral third of her right femur. Conclusions: A neoplastic lesion that affects the trajectory of a muscle group with biomechanical repercussions can carry out compensations at different levels, therefore, the action of a multidisciplinary team is necessary to restore gait. Synergies between conservative and surgical treatment lead to a higher success rate(AU)

Osteoma de oído medio asintomático

Resumen El osteoma de oído medio es un tumor poco común, de crecimiento lento y características benignas. Frecuentemente cursa de forma asintomática y su diagnóstico suele ser casual como en el caso que exponemos. Se presenta el caso de un varón de 26 años, que consultó por odinofagia y otalgia derecha en el contexto de una infección de vía aérea alta. Al explorarlo mediante otoscopia se visualizó en el oído izquierdo una lesión blanquecina y redondeada retrotimpánica compatible con osteoma de oído medio. El tratamiento de elección en pacientes con osteomas de oído medio sintomáticos es la cirugía. Sin embargo, en pacientes asintomáticos el seguimiento es la opción más recomendada.

Abstract The middle ear osteoma is a benign, infrequent, slow-growing tumor. This lesion is frequently asymptomatic and its diagnosis is usually accidental, as the case presented here. We present a case of a 26-year-old man who consulted for odynophagia and right ear pain in the context of an upper airway infection. By otoscopy in the left ear, we observed a whitish retrotympanic lesion that was compatible with a middle ear osteoma. To manage symptomatic patients with middle ear osteomas, surgery is the treatment of first choice. Nevertheless, for asymptomatic patients, follow up is recommended.

Osteoma periférico de inusual localización mandibular. Presentación de un caso / Peripheral osteoma of unusual mandibular location. Case report / Osteoma periférico de localização mandibular incomum. Apresentação de um caso

RESUMEN Se presentó el caso de una paciente femenina de 40 años de edad que acudió a consulta por presentar aumento de volumen en la región parotídea izquierda. Se realizó ortopantomografía, radiografías simples anteroposterior y lateral de cráneo que revelaron la presencia de una imagen radiolúcida en la región lateral de la rama mandibular izquierda. El diagnóstico clínico fue de osteoma periférico a este nivel, por lo que se realizó remoción quirúrgica total de la lesión. La biopsia confirmó el diagnóstico de osteoma ebúrneo periférico. El osteoma es una neoplasia benigna de tejido óseo, poco frecuente y, rara vez, se localiza de manera aislada en la mandíbula. No se diagnosticaron complicaciones posoperatorias y la paciente mostró satisfacción con la atención estomatológica brindada.

ABSTRACT A 40-year-old female patient came to the consultation due to an increase in volume in the left parotid region. Orthopantomography and simple anteroposterior and lateral skull radiographies were performed, revealing the presence of a radiolucent image in the lateral region of the left mandibular side. The clinical diagnosis at this point was of peripheral osteoma, for which a total surgical removal of the lesion was performed. The biopsy confirmed the diagnosis of peripheral osteoma. An osteoma is a rare benign neoplasm of bone tissue, and is rarely found isolated in the mandible. Postoperative complications were not diagnosed and the patient was satisfied with the dental care provided.

RESUMO Foi apresentado o caso de uma paciente do sexo feminino, 40 anos de idade, que compareceu à consulta por aumento de volume na região da parótida esquerda. Foram realizadas ortopantomografia, radiografias simples ântero-posterior e lateral do crânio, que revelaram a presença de imagem radiotransparente na região lateral do ramo mandibular esquerdo. O diagnóstico clínico foi de osteoma periférico a este nível, para o qual foi realizada a remoção cirúrgica total da lesão. A biópsia confirmou o diagnóstico de osteoma periférico ebúrneo. O osteoma é uma neoplasia benigna do tecido ósseo, pouco frequente e raramente localizada de forma isolada na mandíbula. Complicações pós-operatórias não foram diagnosticadas e o paciente ficou satisfeito com o atendimento odontológico prestado.

Osteoma osteoide: causa poco frecuente de dolor crónico en la muñeca en una niña / Osteoid osteoma: unusual cause of chronic pain in the wrist in a child

El osteoma osteoide es una lesión ósea benigna que, habitualmente, se acompaña de clínica típica caracterizada por dolor nocturno que mejora con antiinflamatorios no esteroideos. Aunque la presentación clínica es típica, con frecuencia, es común la demora diagnóstica, en especial, en los casos con localización atípica.Se presenta el caso de una paciente de 10 años con dolor en la muñeca izquierda de dos años de evolución con diagnóstico de osteoma osteoide localizado en el hueso grande del carpo. La localización atípica de la lesión conllevó un retraso diagnóstico importante

Osteoid osteoma is a benign bone lesion that is usually accompanied by a typical clinical condition characterized by night pain that improves with non-steroidal anti-inflammatory drugs. Although the clinical presentation is frequently typical, diagnostic delay is common, especially in cases with an atypical location.We report the case of a 10-year-old patient with left wrist pain of two years of evolution with diagnosis of osteoid osteoma located in capitate bone. The atypical location of the lesion led to a significant diagnostic delay.

Multicentric osteoblastoma-like: report of a rare case in the craniofacial region / Osteoblastoma-like multicêntrico: relato de um caso raro na região craniofacial

ABSTRACT The osteoblastoma-like tumor is a rare condition with limited information about its treatment in the current medical literature. The tumor histologically resembles osteoblastoma, although the imaging features are similar to those seen in primary vascular lesions. Due to the uncertainty in the biological behavior of this tumor and because it is an unusual diagnosis, treatment can be aggressive, such as amputation, en bloc resection, and/or chemotherapy. This work reports a rare case of a patient with multicentric osteoblastoma-like in the craniofacial region, treated aggressively with total resection of the lesions.

RESUMEN El tipo osteoblastoma es una afección poco común y la literatura médica actual tiene información limitada sobre su tratamiento. Es histológicamente similar al osteoblastoma, aunque las características de las imágenes son similares a las que se observan en las lesiones vasculares primarias. Por la incertidumbre de su comportamiento biológico y por tratarse de un diagnóstico poco habitual, el tratamiento puede ser agresivo, con amputación, resección en bloque y/o quimioterapia. Este trabajo reporta un caso raro de osteoblastoma multicéntrico en la región craneofacial, tratado de manera agresiva con resección total de las lesiones.

RESUMO O osteoblastoma-like é uma condição rara, e a literatura médica atual tem informações limitadas sobre seu tratamento. Ele se assemelha histologicamente ao osteoblastoma, embora as características imaginológicas sejam semelhantes às observadas nas lesões vasculares primárias. Devido à incerteza do seu comportamento biológico e por se tratar de um diagnóstico incomum, o tratamento pode ser agressivo, com amputação, ressecção em bloco e/ou quimioterapia. Este trabalho relata um caso raro de osteoblastoma-like multicêntrico em região craniofacial, tratado de forma agressiva com ressecção total das lesões.

Aspectos descriptivos imagenológicos del osteoma de los maxilares: Revisión de la literatura / Descriptive imagenological aspects of osteoma in the jaws: review of the literature

El osteoma es una lesión osteogénica benigna, derivado de hueso compacto o esponjoso. Se caracteriza por ser de crecimiento lento y aparece con más frecuencia entre los 20 y los 50 años de vida, con una prevalencia mayor en hombres con respecto a las mujeres. Clínicamente asintomáticos, los podemos encontrar en la región craneofacial, particularmente en los senos paranasales y la mandíbula, y pueden presentarse de tres formas: central, periférica y extraósea, siendo más comunes los solitarios, a diferencia de los múltiples que están relacionados con el síndrome de Gardner. El tratamiento de los osteomas es quirúrgico cuando causan complicaciones. Los estudios por imágenes, como la radiografía panorámica y la TCHC, son las modalidades de mayor uso para determinar la ubicación, la extensión y las relaciones anatómicas de la lesión. Las características imagenológicas pueden presentarse como una excrecencia ósea de hueso compacto, esponjoso o mixto. El conocimiento de esta lesión nos permitirá tener mejores propuestas diagnósticas. (AU)

Osteomas are benign osteogenic lesions derived from compact or spongy bone. They are characterized by their slow growth and appear more frequently between 20 and 50 years of age, with a higher prevalence in men than in women. These lesions are clinically asymptomatic and can be found in the craniofacial region, particularly in the paranasal sinuses and the mandible, and may have a central, peripheral or extraosseous presentation. Multiple osteomas are related to Gardner's Syndrome. Treatment of osteoma is surgical when complications develop. Imaging studies such as panoramic radiography and cone beam computed tomography are the modalities most widely used to determine the location, extent, and anatomical relationships of the lesion. Imaging features may present as a bony excretion of compact, spongy, or mixed bone. Adequate knowledge of these lesions allows adequate diagnosis and better treatment planning. (AU)

Hip pain in children dilemmas in diagnosis and management a case report

Atraumatic hip pain in growing children is of varied etiology from developmental to infection and tumor. Differential clinical presentation of symptoms and investigation modalities like blood parameters and radiological imaging remains inconclusive at times with differential diagnosis. Biopsy remains the final say in conclusive of establishing final diagnosis unless proved otherwise. Bony lytic lesion of proximal femur in children without systemic illness mimicking benign bone tumor initially (osteiod osteoma) turned out to be chronic osteomyelitis on histopathologically following CT guided biopsy of the lesion which alters the course of management.

Osteonevus of Nanta: a case report in a combined melanocytic nevus

Abstract Secondary osteoma cutis is a phenomenon that may occur in several conditions. When it occurs in a melanocytic nevus it is named osteonevus of Nanta, an event considered uncommon and characterized by the presence of bone formation adjacent or interposed with melanocytic cells. There are reports of its occurrence in various melanocytic lesions, being more frequently associated with intradermal nevus. We report a case of osteonevus of Nanta in combined nevus, possibly the first description of this association.

Tumores fibroóseos de cavidades paranasales: experiencia en el Hospital Clínico de la Universidad de Chile y revisión de la literatura / Fibro-osseous tumors of paranasal cavities: experience in the Hospital Clínico de la Universidad de Chile and review of the literature

Los tumores de cavidades paranasales presentan una baja frecuencia. Dentro de éstos, entre los benignos destacan las lesiones fibroóseas que se caracterizan por el reemplazo de hueso normal por estroma celular fibroso. Dentro de estas lesiones se describen osteoma, displasia fibrosa y fibroma osificante. Se revisan 3 casos de pacientes del Hospital Clínico de la Universidad de Chile y se presenta una revisión bibliográfica en cuanto a las lesiones fibroóseas, su clínica, diagnóstico, imagenología y tratamiento.

The tumors of paranasal cavities present a low frequency. Among the benign tumors are fibro-osseous lesions characterized by the replacement of normal bone by fibrous cell stroma. Osteoma, fibrous dysplasia, and ossifying fibroma are described within these lesions. Three cases of patients from the Hospital Clínico de la Universidad de Chile are reviewed and a bibliographic review is presented regarding the fibro-osseous lesions, their clinical features, diagnosis, imaging and treatment.

Osteoma cutis em couro cabeludo: tratamento cirúrgico com retalho em rotação tipo "S" itálico para exérese de lesão rara / Osteoma cutis on the scalp - Surgical treatment with a rotation flap "S" italic for the removal of a rare lesion

O osteoma cutis é um tumor raro, caracterizado pela presença de tecido ósseo na derme e/ou hipoderme. A seguir, iremos descrever o caso de um paciente com diagnóstico de osteoma cutis no couro cabeludo há cerca de 10 anos, com crescimento progressivo e área de alopecia local. O paciente foi submetido à excisão cirúrgica da lesão com técnica de retalho em rotação tipo "S" itálico para reconstrução da área visando ao melhor resultado estético possível.

Osteoma cutis is a rare tumor characterized by the presence of bone tissue in the dermis and/or hypodermis. We describe the case of a patient diagnosed with osteoma cutis on the scalp for approximately ten years with progressive growth and local alopecia area. The patient underwent surgical excision of the lesion using the rotation flap "S" italic technique to reconstruct the area aiming at the best possible aesthetic result.

Resection of Bone Tumor Guided by Gamma Probe and Evaluation of Postoperative Pain / Ressecção de tumor ósseo guiado por Gamaprobe e avaliação do quadro álgico pós-operatório

Abstract Osteoid osteoma is a benign neoplasm commonly found in young men, but that can be found in every age, which affects mainly long bones, clinically characterized by continuous and limiting pain that is relieved by salicylates. It is a small lesion composed of immature osteoid tissue, central hypervascularization and surrounding sclerotic area. Its diagnosis is performed by the clinic and aided by imaging tests, such as common radiography and computed tomography. Radiography shows a central radiolucent lesion and peripheral sclerosis. The biopsy takes place only in cases of diagnostic doubt. Surgical treatment involves resection of the niche, providing greater symptomatic relief, as well as percutaneous techniques. The technique of radioisotope-guided resection has good acceptance in the scientific community for its fast surgical procedure directed to the lesion; however, the percutaneous technique that stands out is radiofrequency ablation. In the present study, all of the patients submitted to the technique presented total improvement of the pain.

Resumo O osteoma osteóide é uma neoplasia benigna comum em homens jovens; porém, pode atingir qualquer idade, acomete preferencialmente ossos longos, e é caracterizada por dor contínua e limitante que é aliviada por salicilatos. É uma lesão de tamanho pequeno, composta por tecido osteóide imaturo, hipervascularização central e área esclerótica circundante. O diagnóstico é realizado pela clínica e auxiliado por exames de imagem, como radiografia comum e tomografia computadorizada. À radiografia, apresenta-se como uma lesão radiolucente central e esclerose periférica. A biópsia está indicada somente nos casos de dúvida diagnóstica. O tratamento cirúrgico envolve a ressecção do nicho, proporcionando maior alívio sintomático, assim como as técnicas percutâneas. A técnica de ressecção guiada por radioisótopo tem boa aceitação na comunidade científica por tornar o procedimento cirúrgico mais rápido e dirigido para a lesão, ainda que o padrão ouro de tratamento seja a técnica percutânea de ablação por radiofrequência. É válido ressaltar que, no presente estudo, todos os pacientes submetidos à resecção cirúrgica apresentaram regressão do quadro álgico.

Gardner syndrome imaging features in plain radiographs and computed tomography: a case report / Síndrome de Gardner: Características imaginológicas por meio da radiografia convencional e tomografia computedorizada

Gardner syndrome (GS) is a genetic disease with high penetration characterized by a signal triad of colonic polyposis, multiple osteomas and mesenchymal tumors in the soft tissues and skin. The colonic polyposis is associated to the development of malignant disease. Patients may also present maxillomandibular alterations such as impacted teeth, supernumerary teeth, congenital missing teeth and odontomas. Bone lesions and maxillomandibular alterations usually precedes the gastrointestinal alterations; hence dentists should be aware of GS syndrome main radiographic signals, in order to detect the disease and proper referred the patient to medical treatment and surveillance. Thus, in this report, it is described a case of GS in a male patient, as well as discussed GS features.(AU)

A síndrome de Gardner (GS) é uma doença genética caracterizada pela seguinte tríade: polipose colônica, múltiplos osteomas e tumores mesenquimais em tecidos moles e pele. A polipose colônica está associada ao desenvolvimento de tumores malignos. Os pacientes também podem apresentar alterações maxilomandibulares, como dentes impactados, dentes supranumerários, agenesia congênita e odontomas. Lesões ósseas e alterações maxilomandibulares geralmente precedem as alterações gastrointestinais; portanto, os dentistas devem estar cientes dos principais sinais imaginológicos da GS, a fim de detectar a doença e encaminhar adequadamente o paciente para tratamento. Neste relato de caso é descrito um caso de GS em um paciente do gênero masculino, além de discutir as características da GS.(AU)

Analysis of whole-body bone scintigraphy and SPECT/CT imaging in osteoid osteoma / 中华核医学与分子影像杂志

Objective@#To analyze features of osteoid osteoma on whole-body bone scan (WBS) and SPECT/CT imaging.@*Methods@#From January 2010 to December 2018, 70 patients (50 males, 20 females, age: 4-66 years) with osteoid osteoma confirmed by pathology were enrolled from the Affiliated Hospital of Southwest Medical University. All patients underwent WBS and SPECT/CT imaging and imaging features were retrospectively analyzed.@*Results@#A total of 70 lesions were found by WBS combined with SPECT/CT imaging, and 26 lesions (37.1%, 26/70) were found in the femur and 25 lesions (35.7%, 25/70) in the tibia. The radioactive ratio of target lesion to non-target lesion (T/NT) was 3.7±1.2 in 56 patients who underwent three-phase bone imaging. WBS showed that 48 lesions (68.6%, 48/70) were round (or nearly round), 21 lesions (30%, 21/70) were spindle-shaped, and 1 lesion (1.4%, 1/70) was irregular-shaped, while SPECT/CT imaging showed that 69 lesions (98.6%, 69/70) were round (or round) and 1 lesion (1.4%, 1/70) was irregular-shaped. The " double-density sign" was found in 48 lesions (68.6%, 48/70) by WBS and in 59 lesions (84.3%, 59/70) by SPECT/CT imaging. SPECT/CT imaging detected nidus in 59 lesions (84.3%, 59/70) and calcification or ossification (" target sign" ) in 27 lesions (38.6%, 27/70).@*Conclusion@#The typical features of osteoid osteoma on WBS and SPECT/CT imaging include " double density sign" , nidus and " target sign" , which contribute to the diagnosis of osteoid osteoma.

Surgical Management for Symptomatic Huge Frontoethmoidal Osteoma: A Case Report

@#Osteomas of paranasal sinuses are slow-growing benign tumour, which is often asymptomatic. The prevalence is highest amongst fourth and sixth decades. Paranasal sinus osteomas are most commonly found in the frontal sinus. Osteomas are usually asymptomatic and found incidentally on radiographic examination. The symptoms depend on its size and location. Common symptoms include frontal pain, nasal discharge, posterior nasal drip, bump over the inner aspect of the lower eyelid and epiphora. We described a case of 34-year-old woman with an enlarging right medial canthal swelling for 10 years, with increased intercanthal distance followed by persistent right nasal blockage. Because of worsening symptoms, she had sought for treatment in which endoscopic approach excision was performed.

Analysis of whole-body bone scintigraphy and SPECT/CT imaging in osteoid osteoma / 中华核医学与分子影像杂志

Objective To analyze features of osteoid osteoma on whole-body bone scan (WBS) and SPECT/CT imaging.Methods From January 2010 to December 2018,70 patients (50 males,20 females,age:4-66 years) with osteoid osteoma confirmed by pathology were enrolled from the Affiliated Hospital of Southwest Medical University.All patients underwent WBS and SPECT/CT imaging and imaging features were retrospectively analyzed.Results A total of 70 lesions were found by WBS combined with SPECT/CT imaging,and 26 lesions (37.1％,26/70) were found in the femur and 25 lesions (35.7％,25/70) in the tibia.The radioactive ratio of target lesion to non-target lesion (T/NT) was 3.7±1.2 in 56 patients who underwent three-phase bone imaging.WBS showed that 48 lesions (68.6％,48/70) were round (or nearly round),21 lesions (30％,21/70) were spindle-shaped,and 1 lesion (1.4％,1/70) was irregular-shaped,while SPECT/CT imaging showed that 69 lesions (98.6％,69/70) were round (or round) and 1 lesion (1.4％,1/70) was irregular-shaped.The "double-density sign" was found in 48 lesions (68.6％,48/70) by WBS and in 59 lesions (84.3％,59/70) by SPECT/CT imaging.SPECT/CT imaging detected nidus in 59 lesions (84.3％,59/70) and calcification or ossification ("target sign") in 27 lesions (38.6％,27/70).Conclusion The typical features of osteoid osteoma on WBS and SPECT/CT imaging include "double density sign",nidus and "target sign",which contribute to the diagnosis of osteoid osteoma.

Sequential imaging of a case of choroidal osteoma using swept-source OCT and optical coherence tomography angiography: A 4-year follow-up study

A 33-year-old gentleman was presented with metamorphopsia in the left eye due to choroidal osteoma (CO) complicated by choroidal neovascular membrane (CNVM). Optical coherence tomography angiography (OCTA) proved to be a valuable, noninvasive tool in monitoring treatment response of CNVM. The tumor subsequently underwent decalcification over a period of 4 years. In addition, SS-OCT scans were instrumental in documenting the natural course of the tumor and focal choroidal excavations (FCE), which were found in correspondence with tumor decalcification. Close follow-up is warranted in FCE, secondary to decalcification of CO, as CNVM has been documented to occur on the slope or bottom of eyes with FCE.